Чернышов Н. М.

New data on the paleoproterozoic noble metal bearing structural-material complexes and their parageneses in two spatially separated and different in composition of enclosing ferrugineous quartzites and black shales ore districts of KMA are presented. A multi-stage character of the formation of noble-metal types of ores is established; the same type of composition of the mineral phases in the ferruginous quartzites, shales and metasomatites is determined, what is indicating it as a part of a single long developing ore-forming system. The generalized model of the formation of the noble metal bearing ore-forming system in case of a genetically variable sources of material is given.

The sulfide platinoid-copper-nickel deposits in the Voronezh region, discovered for the first time in the 60-70ies of the 20 th century, act as a primary object for the creation of the Central European base of extraction of nonferrous (Ni, Cu, Co) and noble (platinum, gold, silver) metals. Brief information on the geology and structure of the primary objects of development — Elan and Elka deposits, composition of the ores, the content in them of strategically important metals is given. A model of the creation of «ecological mine» and ore mining under strict environmental constraints is suggested.

The article presents new data on the organogenic phosphate, uranium-rare-metal mineralization in the Upper Devonian sediments in the top of the Mikhailovsky iron ore deposit of the EMA, compared with the known Upper Oligocene uranium-rare-metal deposits of Mangyshlak of the same type. Peculiarities of the structure and distribution of rare and noble metals in organogenic phosphate ore formations of different ages are studied. Analysis of metal-bearing fossils of the Upper Oligocene and Upper Devonian bony remains of fish fauna showed that between them there is great similarity in composition and content of the main ore components, as well as in the conditions of formation of stratified clusters of bone detritus of fish. The area of Voronezh Anteclise, where uranium-rare metal mineralization of organogenic phosphate type was established, is regarded as promising for the identification of the deposits with commercial value.